ingersoll



(No Model.)

No. 429,195. Patnted June 3, 1890 if I; g, a 1E 11/ 7b if A 7 E l g C 9 d E C Z JP .0

mamm= a M a- A? A ym w k THE noams PETERS cm, PNUYGHJ'iNO WASNINOTON n c points b 11 UNITED STATES PATENT OFFICE.

ROBERT H. INGERSOLL, OF NEW YORK, N. Y.

TYPE-WRITING MACHIN E.

SPECIFICATION forming part of Letters Patent No. 429,195, dated June3, 1890.

Application filed March 28, 1889. Serial No. 305,168. (No model.) I

T0 at whom it may concern:

Be it known that 1, ROBERT IL-IN EESOLL, a citizen of the United States, and a resident of New York, in the county of New York and State of New York, have invented certain new and useful Improvements in Type-\Vriters, of which the following is a specification.

My invention relates to that class of printing-instruments designated as type-writing machines, and has for its object the provision of a device simple in construction, cheap in manufacture, and efficient in practical use.

'To attain the desired end my invention consists in the construction of parts hereinafter fully set forth.

In the drawings which form a part of this specification, Figure 1 represents a top view, and Fig. 2 an end view, of my type-writer. Fig. 3 is a vertical central section of the same, and Figs. 4 and 5 are detail views.

Like letters of reference, wherever they occur, indicate corresponding parts in all the figures.

Referringagain tothedrawings,Arepresents the bed-plate of my machine provided with the lugs a, post a, channel or groove a guide and lock plate a spiral spring a and adj ustable stop a. Hinged to the lugs a at the points I) b by means of screws, adjustable, as shown, is the movable frame B, which is normally held apart and elevated from the bed A by means of the intermediate spring a as is clearly shown in the drawings. The two side plates of the frame B are connected by the guide-rod b. The descent of the frame B serves, on account of the engagement of the spring-dog b (by means of a lateral pin b with the ratchet-teeth h of the paperholder 11, to move the same along one step, the upper arm I) of the dog 19 normally resting between the'spring b and pin 1). The depending side plate b of the frame B, to which the spring-dog b is attached, also serves, by means of the engagement with the same of the adjustable stop a of the bed A, to limit the descent of the frame B to any point desired in order to secure the best results in the operation of the machine. The frame B also sustains by screws placed at the a cylindrical rod 0, provided with a spirally-formed groove 0. At one end of the horizontal rod 0 is placed my type-wheel D, which is formed by perforating the flange d of the same with square holes d through which the characters formed on square posts (1 of the rubber band (Z are forced, and the parts are held in position by means of the spring clamping-ring (i placed within or under the band (1. The wheel D is also provided with teeth (1, adapted upon the descent of the frame B to engage with the lateral pin a of the post a, thus securing a proper alignment. The frame B also supports an indexplate E, to which are affixed or on which are impressed in any suitable manner the letters or characters 6 that may be desired. Theindex-plate E is shown partly cut away in Fig. 1, in order to represent the parts lying beneath the same.

Vorking on the rod (3, the pin f engaging with the spiral groove 0, is the indicating-slide F, provided with a pointer f and an operatinghandle f, and also with depending spring-arms f f, placed on opposite sides of the guiderod 1).

The function of the depending spring-arms one or both of which may be used, is to allow a slight rotatory movement of the groove-rod 0 around its axis in order to secure a proper locking movement of the rigid pin a and the teeth at of the type-wheel car' ried by the said rod 0, as in case it should happen that the slide F should not be moved quite far enough in either direction and the pin cf strikes the point of one of the teeth (1 the spring-arm f will allow the wheel D to rotate somewhat and the teeth (1 to move a little to one side or the other, so that the pin a may enter between two teeth d, and the proper position of the printing character on the wheel D may be automatically secured.

The letters on the type-wheelD and indexplate E are so placed that whenever the point-er f is in front of any character a similar letter will be imprinted upon the paper held upon the paper-support 11 upon the descent of the frame B. The size of the wheel D and the length of the set of characters are preferably so proportioned that upon one of the letter-spaces on the wheel D being left blank no character will be imprinted upon the paper when the pointer f is on either side of the characters e.

At one side of the frame B, adjacent to the ICO type-wheel D, I place an inll roller G, the supporting-arm g of which is pressed upward by means of a spring g.

My paper-support II is provided with a depending lip 71, working in the channel or groove a and held in position by means of the guide and lock plate a. It is also provided with ratchet-teeth 7L, as stated, and with the roll 7L2, constructed of or covered with rubber or equivalent elastic material, and provided with a manipulating-knob at one end, and also with a series of notches 71, by which, in connection with the spring 7r, the feed of the paper may be regulated. The spring-fingers h serve as guides for the paper, and the rod 7L6, together with the spring /17, serves to hold the same sn ugly against the roll 71?.

In practical operation the indicating-slide F is manipulated by the handle f, and adjusted so that the pointer f shall be in front of the letter or character it is desired to print upon the paper held by the paper-support II. Then, upon depressing the frame 13 by means of the manipulating indicating-slide F, the paper is automatically moved forward one space by means of the engagement with the teeth 72 of the spriiigalogb and the required letter is printed upon the paper. If the pointer f is moved to either side of the index c, or if the frame I; be only partially depressed, the paper will be moved forward without there being any impression made upon the paper.

As it is evident that many slight changes in the construction and relative arrangement of parts might be resorted to without departing from the spirit and scope of my invention, I would have it understood that I do not restrict myself to the particular construction and arrangement of parts shown and described, but that I reserve the right to make such changes, and that \Vhat I claim as new, and desire to secure by Letters Patent, is-

1. The combination, with the spirallygrooved rod 0, carrying a type-wheel I), and with a slide F, provided with a depending spring-armf, and also wit-h the supportingframe 15, of the bed A, provided with the rigid lockingpin a, adapted to engage with the wheel 1) and the guide-rod 7), whereby a slight rotatory as well as downward movement is produced, thereby securing a proper locking movement, as and for the uses and purpose set forth.

2. The combination, with a movable frame I having guide-rod b, spirally-grooved rod type-wheel D, and index-plate E, of a slide F, provided with a depending spring-arm 23, and with a combined pointer and operatinghandle, whereby the pointerf' is adapted to traverse the index-plate E, and the handle f is adapted to travel along the edge of the frame 13, as and for the uses and purpose set forth.

In testimony of. the foregoing specification I do hereby sign the same, in the city, county, and State of New York, this 26th day of March, A. D. 188.).

ROBERT II. INGERSOLL.

\Vitnesses:

J. 0. FOWLER, J r., CHAS. II. INGERSOLL. 

